KNIFE, KAshima Nobeyama InterFErometer

Makoto Miyoshi

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arXiv · 2212.13331

KNIFE, KAshima Nobeyama InterFErometer

Makoto Miyoshi

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Abstract

By connecting two antennas, Kashima 34~m and Nobeyama 45~m, an east-west baseline of 200~km is formed. At that time, because Nobeyama 45~m had the world's number one sensitivity in the 43~GHz band, and also Kashima 34~m was the world's third-largest one, the Kashima-Nobeyama baseline provided the highest sensitivity at 43~GHz VLBI (Figure 1). The construction of the Kashima 34~m antenna began in 1988, also almost at the same time, a domestic project of mm-VLBI (KNIFE, Kashima Nobeyama INterFrermeter) started. Nobeyama Radio Observatory provided the first cooled-HEMT 43~GHz receiver in the world to the Kashima 34~m. In October 1989, the first fringe at 43~GHz was detected. We here review the achievements of the KNIFE at that time.

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Makoto Miyoshi. 2022-12-27. KNIFE, KAshima Nobeyama InterFErometer. https://arxiv.org/abs/2212.13331

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